Strongly concur. I have the same reaction to pjeby's blog. I don't think it's only because of the bold; it's the writing style too, which consistently seems to me to be saying "I understand all this stuff, and you are stupid. So stupid I have to write in short sentences. And sentence fragments. Because otherwise ... you won't get it." And I find it offputting. Very offputting.

Which is a pity, because ...

... pjeby has some interesting things to say.